Replace Upper Door Hinge Drivers side

Since this is my first "Chevy" I have a used 99 burb that has a bent detent pin and one of the hinges appears to come loose from the door. Bought a repair kit but did not notice there were no bolts on door? How do you replace the hinge and is there any "How to" videos or instructions? Got the part from LMC truck right down the road from my house.